Running Windows Vista and Ubuntu 11.04 on an Acer tower. Was running 10.10 with kernel 2.6.35.32, running great. Upgraded to 11.04 from Update Manager, re-boot results in Input Not Supported error, then a short delay, then 11.04 boots, but without GRUB menu. I would like to get to version 12.04, but am afraid to continue until I get 11.04 running error-less.

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Mitch♦Aug 27 '12 at 7:22